Hypotension is a condition when blood pressure in the arteries is lower than normal and is commonly referred to as low blood pressure.
When blood flows through the arteries, the blood puts pressure on the arterial wall, the pressure is considered as a measure of blood flow strength or called blood pressure.
Inhibition or limited amount of blood flowing to the brain and other vital organs such as the kidneys can occur if the blood pressure is too low, so it can cause the head feels light and dizzy. The body will also feel unstable or shaky, even lose consciousness.
There are two sizes used in blood pressure, namely systolic pressure (upper number) and diastolic pressure (lower number). Normal blood pressure is between 90/60 and 140/90. Patients with hypotension have blood pressure below 90/60 and are accompanied by hypotensive symptoms. Whereas if the blood pressure above 140/90, then the person is suffering from high blood pressure / hypertension.
Symptoms of Hypotension
Not all who experience hypotension will feel the symptoms. The condition of hypotension also does not always require treatment. However, if the blood pressure is low enough, it is likely to cause symptoms such as the following.
- Heart pounding or irregular.
- Losing balance or feeling unsteady.
- The view is blurry.
- Pale and cold body.
- Short or fast breath.
If you experience symptoms of hypotension, you should immediately sit or lie down, drink water, and stop all the activities you are doing. Symptoms will usually disappear after a while.
If you often experience symptoms of hypotension as mentioned above, see a doctor to measure your blood pressure and check if there are certain diseases that cause symptoms such as hypotension.
Causes of Hypotension
Actually blood pressure can change throughout the day, depending on the activity being done and this is considered normal.
There are many factors that cause a person's blood pressure to be low, such as age, medication, and weather conditions.
Hoter air weather can lower blood pressure. People who are relaxed or diligent exercise also generally have lower blood pressure. In addition, if you just eat, blood pressure can also decrease because a lot of blood that will flow into the digestive tract to digest and absorb food.
Blood pressure during the day and night is different. Usually during the day the blood pressure will increase, and the night will be lower.
Causes of hypotension due to certain conditions or diseases
Hypotension can be caused by certain conditions or diseases, some of which are:
- Orthostatic hypotension. Symptoms of orthostatic hypotension usually appear when you change positions suddenly. A person with orthostatic hypotension decreases systolic blood pressure by 15-30 mm Hg when standing from a sitting or lying position.
- Neurally mediated hypotension. This condition usually occurs when a person stands for too long, until the bloodstream is gathered at the bottom of the body.
- Dehydration. Dehydration occurs due to the body's lack of fluids and can be caused by lack of drinking, fasting or diarrhea.
- Side effects of treatment. There are some drugs that can lower blood pressure, such as antidepressants, anti-hypertensive drugs such as alpha-blockers and beta-blockers, inhibitors of angiotensin-converting enzymes (ACE inhibitors) to diuretic drugs.
- Anemia. Anemia is a condition in which the content of hemoglobin in the blood is low. One of the symptoms of anemia is low blood pressure.
- Pregnancy. Blood pressure in pregnant women is usually lower because of its rapidly developing blood circulatory system.